Home / 127,983.31-191,911.75-39,215.41

Finding the Fourth Proportional to 127,983.31, 191,911.75 and 39,215.41

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Solution

The fourth proportional to 127,983.31, 191,911.75 and 39,215.41 is: 58,803.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,983.31 : 191,911.75 = 39,215.41 : x
  2. Step 2: Convert to fraction form
    127,983.31/191,911.75 = 39,215.41/x
  3. Step 3: Cross multiply
    127,983.31x = 191,911.75 × 39,215.41
  4. Step 4: Simplify right side
    127,983.31x = 7,525,897,382.25
  5. Step 5: Solve for x
    x = 7,525,897,382.25/127,983.31
  6. Step 6: Final answer
    x = 58,803.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.